During the infection cycle for a typical retrovirus, such as HIV, which uses RNA as genetic material, the genetic variation in the resulting population of new virus particles is very high because of .A. damage to the virus particle from envelop loss.
B. errors introduce in the DNA molecule through reverse transcription.
C. errors in the protein molecules produced in translation.
D. recombination of the genomes of free virus particles.

Option (B) is Right Answer

Explanation:

    (B) errors introduce in the DNA molecule through reverse transcription.

The HIV RNA and different enzymes, including integrase, protease,ribonuclease,and reverse transcriptase are inserted into the cellThe viral contamination and  genetic variation can introduce genetic variation into the hostsCreates hereditary variation by means of different mechanismsViruses replicate by means of a segment get together model permitting one viruses to deliver numerous offspring all the while through the lytic cycle  HIV releases and uses invert transcriptase (a HIV chemical) to change over its hereditary material HIV RNA into HIV DNA The transformation of HIV RNA to HIV DNA permits HIV to enter the CD4 cell core and consolidate with the cell's hereditary material cell DNA

option a is correct i.e.

only sodium ions can pass through the membrane.

explanation:

in context to the membrane of nerve impulse, the outer membrane of neuron is semi permeable that is only sodium ions can pass through the membrane i.e. smaller ions can pass through the membrane while larger ions cannot pass through it.

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